PHP Requires Chilkat v11.0.0+

Mark IMAP Email as Read/Unread (Seen/Unseen)

Demonstrates how to mark emails as read or unread. Chilkat2 PHP

<?php

use Chilkat2\Email;
use Chilkat2\Imap;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$imap = new Imap();

// Connect to an IMAP server.
// Use TLS
$imap->Ssl = true;
$imap->Port = 993;
try {
    $imap->Connect('imap.example.com');

    // Login
    $imap->Login('myLogin', 'myPassword');

    // Select an IMAP mailbox
    $imap->SelectMailbox('Inbox');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Set PeekMode so that downloaded messages are not
// automatically marked as seen.
$imap->PeekMode = true;

// The NumMessages property contains the number of messages
// in the currently selected mailbox.
$numMsgs = $imap->NumMessages;
if ($numMsgs == 0) {
    exit;
}

$email = new Email();
for ($i = 1; $i <= $numMsgs; $i++) {
    // Download each email by sequence number (not UID)
    try {
        $imap->FetchEmail(false, $i, false, $email);

        // If desired, mark the email as SEEN.  There are two
        // ways to do it:

        // 1) Set the flag directly by using the sequence number
        // Indicate that we are passing a sequence number and
        // not a UID:
        $bIsUid = false;
        // Set the SEEN flag = 1 to mark the email as SEEN,
        // or set it to 0 to mark it as not-seen.
        $imap->SetFlag($i, $bIsUid, 'SEEN', 1);

        // 2) Alternatively, we can use the email object.
        // When an email is downloaded from the IMAP server
        // Chilkat will add a "ckx-imap-uid" header to the email.
        // This makes it possible to know the UID associated with
        // the email.  (This is not the sequence number, which may change
        // from session to session, but the UID which does not change.
        // The SetMailFlag method is identical to SetFlag, except
        // it gets the UID from the ckx-imap-uid header.
        // For example:
        $imap->SetMailFlag($email, 'SEEN', 1);
    } catch (\Chilkat2\Exception $e) {
        echo $e->getMessage(), "\n";
        exit;
    }
}

// Disconnect from the IMAP server.
$imap->Disconnect();